if, south san francisco towards san mateo low to mid 70s everywhere else except east bay, antioch, fairfield and livermore will see sunshine first. 67 monterey. mid 70s rest of the bay. upper 70s morgan hill, gilroy and hollister. low to mid 50s most of us are supposed to be in the 40s this time of the year for our overnight lows clouds will keep 'em up. this low hooks up with front gives it enough energy to breakthrough that formidable area of high pressure and bring rain. scout showers ahead of the main band during the afternoon in the north bay, during the trick-or-treating hours steadier rain moves into the north bay once we get past 8:00, starts to move into the heart of the bay, heaviest rain overnight up to tomorrow's morning commute then scattered showers in the afternoon. half inch of rain possible south bay east bay valleys 3/4 inch of rain around the bay up to an inch in the north bay by the time it ends. friday the sun breaks out, saturday, sunday, monday, temperatures warm. have a great day. >>> hayward side of the san mateo bridge, looking west towards foster city, tail lights